Cita APA (7th ed.)

O'Hara, M. (1947). Green grass of wyoming. Magnet Book.

Cita Chicago (17th ed.)

O'Hara, Mary. Green Grass of Wyoming. London: Magnet Book, 1947.

Cita MLA (9th ed.)

O'Hara, Mary. Green Grass of Wyoming. Magnet Book, 1947.